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A linear Fe-O-Fe unit in bis(dibenzyldimethylammonium) mu-oxo-bis[tribromoferrate(III)].

2006

The title compound, (C 16 H 20 )N) 2 [Fe 2 Br 6 O], crystallizes with one dibenzyldimethylammonium cation and one half of a μ-oxo-bis[tribromoferrate(III)] anion in the asymmetric unit. The bridging oxo group is situated on an inversion centre, resulting in a linear conformation for the Fe-O-Fe unit. The iron(III) cations have tetrahedral geometry, with bond angles in the range 106.8 (1)-112.2 (1)°. The ion pairs are held together by Coulombic forces and C-H···Br hydrogen bonds. Each Br - anion forms one hydrogen bond. No C-H···O hydrogen bonds are found between the O atom in the Fe-O-Fe unit and surrounding counter-cations, consistent with the linear configuration of the Fe-O-Fe unit.

Models MolecularOne halfMolecular StructureHydrogen bondChemistryIronTetrahedral molecular geometryHydrogen BondingGeneral MedicineCrystal structureIon pairsCrystallography X-RayGeneral Biochemistry Genetics and Molecular BiologyIonOxygenQuaternary Ammonium CompoundsCrystallographyMolecular geometryLinear configurationActa crystallographica. Section C, Crystal structure communications
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